Nice.
Our pair has been in a long relationship and is now in their 3rd year. For two of those years they used the same nest, but this year it is a new home for them. They arrived on the 22nd of April and obviously flew Emirates and had to make strange stop-overs.Otherwise they would have been here on the 16 April flight.
They raised two broods last year but the second brood was wholly unsuccessful. They dumped the non-viable babies to die on my front stairs - three of them over a period of 10 days. Their nest was anchored against the wall right above the front door and each year it was an unholy mess. I had to scrub the stairs each day to get rid of the acidic droppings that etched into the cement stairs and eventually I cut a plastic mat to size and laid it over the stairs. We couldn't use the front door for a few months for fear of disturbing them, fear of squashing a reject or fear of squashing a poo sac.
During winter I decided to remove the nest and scrub away traces of it. I replaced the light fitting below that got bombed and could not be rescued and hoped that on their return to their northern summer home they would nest elsewhere on the house. On their return they posed on their telephone wire and surveyed the scene. They didn't look too angry or puzzled but started fluttering about the eves and bombed the lounge window twice in a form of passive-aggressive behaviour.
Nevertheless, they didn't attempt to build on the old site and chose a new one under the eve, directly next to the door and slightly lower than the previous site. During the three weeks of Scottish drought we've just emerged from, they nevertheless managed to find suitable mud and the nest is now complete. I haven't monitored their behaviour for a few days but shall go and have a look.
Swallows are messier than Mynahs/starlings. Those birds remove the poo sacs from the nest and dump them quite far away. The swallows just let rip. Other than that, they're pretty OK birds. I wish I could just migrate from summer to summer.
Reiver, say goodbye to your un-etched cement floor and go and buy a new trowel. You won't be using that one this summer.